<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>11、单例模式</title>
</head>
<body>
    <button id="myBtn">这是一个按钮</button>
    <script src="./../dist/11、单例模式/11、main.js"></script>
</body>
</html>